Pilot demonstration of enhanced oil recovery by micellar polymer waterflooding : phase B by Long Beach (Calif.)(
Book
)3
editions published
in
1978
in
English
and held by
66 WorldCat member
libraries
worldwide
A contract between the City of Long Beach and ERDA provided for the design and implementation of a micellar-polymer tertiary
waterflood project in the HXa sand, Fault Block VB, Wilmington Oil Field. The purpose of this field test is to demonstrate
an improved oil recovery process which will displace economic quantities of otherwise nonrecoverable viscous oil from this
reservoir, as well as to determine its suitability for application to other sites. A mini-injectivity test was initiated in
Well FT-1 on January 12, 1978. A sulfonate slug, using Stepan's ''Petrostep'' 450, was injected and followed by the injection
of a mobility buffer polymer mixed with fresh water at a product concentration of about 4000 ppM, followed by the injection
of a more concentrated solution of 8000 ppM. Injection of a 4000 ppM solution of Cyanatrol 950 S was initiated in Well FT-1.
The rapidly deteriorating injectivity of the Cyanatrol 950 S indicated that the prior injection of extremely high concentrations
of Cyanatrol 940 S had plugged this well. A clean-out treatment was apparently successful, and the entire polymer injection
test was rerun. The first step of a comprehensive fluid systems design program using native material in disc floods was initiated
with additional laboratory equipment having been dedicated to this project. The first step of this program involves the slug
optimization phase in which the most cost-effective sulfonate slug will be established. The drilling program is proceeding
on schedule with four injection wells and four producing wells having been completed. The objectives of the transient test
are to locate the Pier A Fault more precisely and to determine the degree of reservoir continuity throughout the test area